EP2522206B1 - Carte à circuit imprimé - Google Patents

Carte à circuit imprimé Download PDF

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Publication number
EP2522206B1
EP2522206B1 EP10749586.3A EP10749586A EP2522206B1 EP 2522206 B1 EP2522206 B1 EP 2522206B1 EP 10749586 A EP10749586 A EP 10749586A EP 2522206 B1 EP2522206 B1 EP 2522206B1
Authority
EP
European Patent Office
Prior art keywords
flexible member
traces
circuit board
fastener
computing device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10749586.3A
Other languages
German (de)
English (en)
Other versions
EP2522206A1 (fr
Inventor
Stephen R. Mcclure
Joshua D. Banko
John P. Ternus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Apple Inc
Original Assignee
Apple Inc
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Filing date
Publication date
Application filed by Apple Inc filed Critical Apple Inc
Priority to EP14166476.3A priority Critical patent/EP2775375B1/fr
Publication of EP2522206A1 publication Critical patent/EP2522206A1/fr
Application granted granted Critical
Publication of EP2522206B1 publication Critical patent/EP2522206B1/fr
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Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0277—Bendability or stretchability details
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/18—Packaging or power distribution
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1643—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being associated to a digitizer, e.g. laptops that can be used as penpads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0277—Details of the structure or mounting of specific components for a printed circuit board assembly
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0277—Bendability or stretchability details
    • H05K1/028—Bending or folding regions of flexible printed circuits
    • H05K1/0281—Reinforcement details thereof
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/11—Printed elements for providing electric connections to or between printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/11—Printed elements for providing electric connections to or between printed circuits
    • H05K1/118—Printed elements for providing electric connections to or between printed circuits specially for flexible printed circuits, e.g. using folded portions
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/325—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by abutting or pinching, i.e. without alloying process; mechanical auxiliary parts therefor
    • H05K3/326—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by abutting or pinching, i.e. without alloying process; mechanical auxiliary parts therefor the printed circuit having integral resilient or deformable parts, e.g. tabs or parts of flexible circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0249—Details of the mechanical connection between the housing parts or relating to the method of assembly
    • H04M1/0252—Details of the mechanical connection between the housing parts or relating to the method of assembly by means of a snap-on mechanism
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
    • H05K2201/09727—Varying width along a single conductor; Conductors or pads having different widths
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49126—Assembling bases
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49128—Assembling formed circuit to base
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
    • Y10T29/49133—Assembling to base an electrical component, e.g., capacitor, etc. with component orienting
    • Y10T29/49135—Assembling to base an electrical component, e.g., capacitor, etc. with component orienting and shaping, e.g., cutting or bending, etc.
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
    • Y10T29/49139—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture
    • Y10T29/4914—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture with deforming of lead or terminal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49155—Manufacturing circuit on or in base
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49169—Assembling electrical component directly to terminal or elongated conductor

Definitions

  • the described embodiments relate generally to computing devices such as laptop computers, tablet computers, and the like. More particularly, circuit board connection schemes are described.
  • One design challenge associated with the portable computing device is the design of the enclosures used to house the various internal components. This design challenge generally arises from a number conflicting design goals that includes the desirability of making the enclosure lighter and thinner, the desirability of making the enclosure stronger, and making the enclosure more aesthetically pleasing. Within the enclosure, power and data connections need to be established between the various internal components with considerations of the packing efficiency and ease of assembly.
  • the portable computing device will have one or more enclosure components where each enclosure component has some external profile with a 'thickness' that is relatively constant.
  • Various internal components can be distributed within the external profile of each of the enclosure components.
  • the internal components can be located at various heights within the thickness of each enclosure component. Numerous data and power connections can link the internal components. Since two internal components can be situated at different heights, the data and power connections are needed to traverse the height difference to link the two components.
  • a connection between two internal components of different heights is often accomplished using a flexible cable often referred to as "flex."
  • flex can be used to connect two circuit boards at different heights where each circuit board includes a connector that is compatible with connectors on each end of the flex.
  • the use of flex requires extra connectors and more assembly steps, which increases costs. In view of the foregoing, there is a need for improved internal component connection schemes.
  • US 2006/0285302 A1 discloses a flexible printed circuit board (FPBC) including a circuit connector connected to a circuit board connector of a printed circuit board (PCB) for electronic equipment.
  • a first compression unit and a second compression unit are provided at an interface between the first compression unit and the second compression unit such that the folding unit, and the second compression unit, is folded by a force generated when the circuit connector is connected to the circuit board connector.
  • a method according to claim 1 there is provided a method according to claim 1.
  • first circuitry can be located on a multi-plane rigid circuit board.
  • the multi-plane rigid circuit board can include at least one flexible member.
  • the flexible member can include traces used to convey power and/or data and an interface coupled to the power and/or data traces.
  • the flexible member can be deflected or twisted to connect first circuitry on the multi-plane rigid circuit board to second circuitry associated with another device component.
  • the flexible member can be formed as an integral component of the multi-plane rigid circuit board, i.e., the flexible member and the multi-plane rigid circuit and the flexible member share a common substrate.
  • a first printed circuit board and an enclosure for a portable computing device can be provided.
  • the first printed circuit board can include a flexible member extending from a body portion of the first printed circuit board.
  • the flexible member can includes a number of traces and a free end of the flexible member can include a first interface to the traces.
  • the first printed circuit board can be secured within an interior portion of the enclosure.
  • a first fastener can be secured across the flexible member such that a surface of the first fastener is in contact with a side of the flexible member including the traces.
  • a portion of the fastener can be insulated to prevent shorts from occurring across the traces.
  • the free end of the flexible member can be deflected such that the flexible member is bent along a first line near the first fastener.
  • the free end of the flexible member can be secured using a second fastener where the flexible member is bent along a second line near the second fastener.
  • the first and second fasteners can tend to localize stresses resulting from deflecting and/or twisting the flexible members to an area on the flexible member between the two fasteners.
  • the end portion of the free end can be located at a different depth within the enclosure than the body portion of the first printed circuit board and/or at a different angular orientation to the body portion.
  • a second circuit board including second circuitry can be connected to the first interface to allow data and power to be transmitted between the second circuit circuitry and first circuitry located on the body portion of the first circuit board via the traces on the flexible member.
  • one or more of internal components can include a multi-plane rigid circuit board.
  • the multi-plane rigid circuit board can include at least one flexible member.
  • the flexible member can include traces used to convey power and/or data and an interface coupled to the power and/or data traces.
  • the multi-plane rigid circuit board can be installed within a computing device and then a free end of the flexible member can be deflected and/or twisted and secured at a location that is above or below a level where a remaining portion of the multi-plane rigid circuit board is secured or in a different plane from the remaining portion of the multi-plane rigid circuit board.
  • the interface on the free end of the member can be coupled to a printed circuit board such that power and/or data can be transmitted between circuitry residing on the multi-plane rigid circuit board and circuitry residing on the printed circuit board via the flexible member.
  • the use of multi-plane circuit board can be used to replace flex cables in the design of the portable computing device.
  • a portable computing device can have a main logic board.
  • the portable computing device can have an enclosure and the main logic board where the main logic board is designed to reside at a certain depth within the enclosure.
  • the main logic board can be a multi-plane rigid circuit board.
  • the main logic board can include one or more flexible members including power and/or data traces and an interface to the power and/or data traces.
  • the main logic board can be installed at a first level within the portable computing device and then the one or more flexible members can be secured at locations above or below the level of the main logic board or in a different plane than the main logic board.
  • the traces on the flexible member can be used to transmit power and/or data between the main logic board and another component associated with the portable computing device, such as but not limited to a SIM card, a wireless interface (e.g., an antenna), a multi-pin data connector, a multi-pin power connector or a combination multi-pin data and power connector.
  • a SIM card e.g., a SIM card
  • a wireless interface e.g., an antenna
  • a multi-pin data connector e.g., a multi-pin power connector or a combination multi-pin data and power connector.
  • the circuitry associated with the additional component can be located in a plane that is above or below a body portion of the main logic board and/or is not parallel to the main logic board.
  • the flexible member on the main logic board can be used to traverse the depth change as well as an angle change between the body portion of the main logic board and a location of the circuitry associated with the additional component.
  • the methodology used herein can be used to connect two different circuitry components located in planes of a different depth where the planes can be at an angle relative to one another.
  • the methodology can be applied within a computing device, portable or not, and is not limited to the example of a connection between a main logic board and other circuitry within a computing device.
  • Figs. 1a-4 show a side view and a top view, respectively, of a computing device with three unconnected internal components where one of the components is a multi-plane rigid circuit board with two flexible members.
  • Figs. 2a and 2b show a side view and a top view, respectively, of a portable computing device with three internal components shown in Figs. 1a and 1b connected using the two flexible members of the multi-plane rigid circuit board in accordance with the described embodiments.
  • Fig. 3 shows a top view of a multi-plane rigid circuit board with three different flexible members.
  • Fig. 4 is a flow chart of a method of manufacturing a portable computer device incorporating a multi-plane rigid circuit board.
  • Figs. 1a and 1b show a side view and a top view, respectively, of a portable computing device 100 with three unconnected internal components in accordance with the described embodiments.
  • the portable computing device 100 includes an enclosure 102.
  • the external profile and the internal profile of the enclosure 102 is that of a rectangular box.
  • the enclosure 102 can have a thickness, where different thickness heights are denoted by the 'z' dimension 110.
  • a length and width of the enclosure 102 can be denoted by the x and y dimensions, 116 and 118, respectively.
  • the rectangular profile including its relative thickness is provided for illustrative purposes only.
  • the external profile can include various surfaces, such as rounded surfaces that differ from a pure rectangular profile.
  • the internal profile can be shaped very differently from the external profile.
  • the internal profile can have steps and curved surfaces that vary from location to location throughout the interior of the computing device where a nominal thickness between the external and internal profiles can vary throughout the enclosure.
  • devices and their associated components can be distributed throughout the enclosure and linked together, such as but not limited to antenna components, external data and power interfaces, mechanical button components, audio components, display components, touch screen components, processor and memory components and battery components.
  • devices and their associated components include printed circuit boards (PCBs) with associated connectors that allow the components to be linked to one another via a connection scheme of some type.
  • the connection scheme can allow power to be delivered to a component, if required, and can allow for communication between various components to occur.
  • PCB 104 is a main logic board and includes a CPU component 112.
  • the PCBs, 104, 106 and 108 can be constructed from a material, such as a plastic, and other suitable materials useful with printed circuit boards.
  • the PCBs, 104, 106 and 108 are located at different heights 110 within the enclosure 102.
  • the first PCB 104 is located at a first height.
  • the second PCB 106 and third PCB 108 are located at height above the first PCB 104.
  • the height of PCB 106 changes along the y dimension 118 while the heights of PCB 104 and PCB 108 are constant in this direction, i.e., the boards lie on a constant z-plane.
  • Each of the PCBs, 104, 106 and 108 can be secured or anchored to an underlying support structure that is coupled to the enclosure 102.
  • the underlying support structure is generically illustrated as box 101.
  • the support structure can include frames, fasteners and posts that can vary depending on the design of the portable computing device 100.
  • PCB 104 can include a center portion with two rectangular flexible members, 124 and 126, extending from the center portion of the PCB 104.
  • PCB 104 can be multi-plane rigid circuit board.
  • a portion of member 124 can be disposed below and can overlap with PCB 106 and a portion of member 126 can be disposed below and can overlap with PCB 108 as shown in the top view of Fig. 1b .
  • the flexible members 124 and 126 can be made of the same material as the remaining portion of the multi-plane rigid circuit board 104 where board 104 can be a single integral piece including integral traces, i.e., the members 124 and 126 are not formed separately and then coupled to the board 104.
  • the material composition used in 104 can be adjusted to make the entire board 104 and hence the flexible members 124 and 126 more flexible.
  • the material composition of the flexible members 124 and 126 and the area proximate to where the flexible members 124 and 126 extend from the board 104 can be adjusted to improve flexibility of the members and the board in these areas.
  • portions of the board 104 can be more rigid than other portions of the board 104.
  • Member 124 includes an interface 128b to the power and/or data traces 120 that generally aligns with an interface128a to circuitry on PCB 106.
  • Member 126 includes an interface 130b to the power and data traces 122 that generally aligns with an interface 130b to circuitry on PCB 108.
  • the interface pairs, (128a, 128b) and (130a, 130b) are shown slightly off set from one another because they are unconnected. The deflection of the flexible members 124 and 126 in the z-dimension 110 to enable a connected state can shorten their length in the x, 116, and y, 118, dimensions respectively.
  • the interface pairs When deflected, the interface pairs can be more closely aligned, i.e., less off-set in the x-y plane as is shown and described with respect to Figs. 2a and 2b .
  • Possible deflection distances in the z-dimension can be up to 15 mm or greater.
  • members, 124 and 126, of PCB 104 can include traces, 120 and 122, respectively.
  • the traces form conductive paths on the PCB 104 and allow power and/or data to be transmitted between components on the PCB 104.
  • the traces can be laid down when the over-all circuitry of PCB 104 is formed.
  • the traces are a thin line of metal, such as copper.
  • the thickness of each trace can vary from trace. For instance, a trace that carries power can be thicker than a trace that carries data.
  • one or more traces can be located on the members 124 and 126 and embodiments are not limited to the three traces shown in the Figures.
  • the number of traces can vary from member to member.
  • member 124 can include traces that lead to a 30 pin connector and thus, can have 30 traces when all of the pins are connected.
  • Member 126 can include traces that lead to a 10 pin connector and thus, can have 10 traces when all of the pins are connected. Seventy and one hundred pin connectors are available for certain devices and members 124 and 126 can be configured with the number of traces necessary to provide connections to these types of connectors.
  • the number traces can vary according to the devices that are being connected, such as but not limited to a main logic board and a Sim card or an eternal data connector.
  • Figs. 2a and 2b show a side view and a top view, respectively, of a portable computing device with three internal components shown in Figs. 1a and 1b connected using the two flexible members, 124 and 126, of the multi-plane rigid circuit board in accordance with the described embodiments.
  • Fig. 2b in a connected state, an end of the member 124 is deflected in the z dimension 110 and twisted at an angle 132 such that the end of the member is secured in an orientation that is proximately parallel to a bottom surface of board 106.
  • the amount of twist along the member 124 varies to allow it to reach angle 132 at its end.
  • traces 120 on the member 124 are also bent and twisted through a range of angles until the angle 132 is reached.
  • the member 126 is bent at an angle 134 relative to the z-plane of the remaining portion of board 104.
  • An end portion of member 126 is bent through a second angle 135 such that the end portion is parallel to a portion of the surface of board 108.
  • the traces on 122 on member 126 are also bent through these two angles.
  • board 108 and the remaining portion of board 104 are proximately parallel.
  • the angles 134 and 135 are proximately equal.
  • the angles 134 and 135 can be different.
  • board 108 can be rotated up or down through an axis in the x dimension as indicated by the arrows in the Fig. 2a , such that angle 135 is greater than or less than angle 134 (depending on the direction and angle of rotation) to enable the end portion of member 126 to be parallel to a portion of surface 108.
  • the member 126 is shown is being straight. This orientation is provided for illustrative purposes. Between the bend points, the member 126 can be bowed up or bowed down and possibly slightly twisted if board 104 and board 106 are not parallel to enable proper alignment of an interface on the member 126 and an interface on board 108. Thus, the orientation is not limited to being in a straight orientation as shown in the figure.
  • interface 128a is on a lower surface of board 106 and interface 128b is on a top surface of flexible member 124.
  • a body portion of board 104 and the end of member 124 can be secured in their respective orientations.
  • the body portion of board 104 can be secured first and then the end of member 124 can be secured or vice versa or both can be secured simultaneously.
  • the board 106 can be secured such that a successful connection is made between the interfaces 128a and 128b.
  • the board 106 can be secured first and then the end of member 124 can be slid under board 106 to form a connection between the boards. After a connection is formed, the member 124 can be secured in place.
  • interface 130b is on an underside surface of the end of flexible member 126 and interface 130a is on a top surface of board 108.
  • end portion of member 126 can be secured in place and then board 108 can be slid underneath to form a connection.
  • board 108 can be secured in place and then the end portion of member 126 can be placed over the board 108, connected and then secured.
  • fasteners can be used.
  • fasteners, 125a and 125b are shown securing member 124 and fasteners 125c and 125d are shown securing member 126.
  • the fasteners 125a-125d can include holes and posts, such as 127, for allowing a fastener, such as a screw, to be placed through the fastener.
  • a portion of the fastener can be in contact with the traces, such as traces 120 and 122.
  • a portion of the fastener is in contact with the traces, it can be composed of a non-conductive material, such as plastic, to prevent shorts across the traces.
  • a remaining portion of the fastener can be comprised of another material if desired, such as a metal. For instance a piece of metal with the mounting holes can be secured over a piece of plastic in contact with the traces.
  • the fasteners 125a and 125b can be placed in contact with the flexible members to define regions of bending on the flexible member 124. Similarly, fasteners 125a and 125b can be placed in contact with flexible member 126 to define region of bending.
  • fasteners 125a and 125b or 125c and 125d are secured, most of the bending stress can be confined on the region of the flexible members, 124 or 126, between the fasteners such that stress is not transferred to the remaining portion of board 104 or to the areas where interfaces 128a/128b and 130a/130b are connected.
  • fasteners in this way can prevent damage to board components, such as components on board 104 and prevent the connections between boards 104-106 and 104-108 from coming loose.
  • the fasteners can be considered "stress isolators," in that the fasteners tend to localize or isolate the stress to particular areas, such as to a particular area of the flexible member.
  • a surface of the portion the fasteners can be rounded.
  • the rounded surface can provide a radius of curvature for the bending of one of the members, such as 124 and 126, and prevent a sharp edge from pressing into the traces and possibly damaging the traces. Further, the radius of curvature can possibly reduce stresses on the traces that occur as result of bending.
  • an underside of fastener 125c can be rounded to provide a radius of curvature for the bending of member 126 through angle 134.
  • the boards 108 can also be rounded for a similar purpose. For instance, an edge of board 108 can be rounded to provide a radius of curvature for the bending of the free end of member 126 through angle 135.
  • the traces on the flexible member can be organized in layers. For example, a number of trace layers, such as 10 trace layers, can be provided from near the top surface of flexible member 124 to a bottom surface of flexible member 124. One or more traces can be located in the in-depth layers. The trace layers can be populated when a multi-plane rigid circuit board, such as 104 is formed.
  • a portion of the member 124 can be placed in compression and a portion can be placed in tension.
  • a portion can be placed in tension.
  • the compressive and tensile forces are proximately balanced.
  • the layer where the forces are balanced is often referred to as the neutral axis.
  • a side view across member 124 is shown to expose a number of layers between the top and bottom surface of member 124.
  • a neutral axis 124c where compressive and tensile forces are proximately balanced is depicted.
  • the neutral axis 124c is provided for the purposes of discussion only and is not meant to be an accurate representation of the location of the neutral axis.
  • traces arranged on the member 124 can be of different thicknesses. For instance, a trace carrying power can be thicker than a trace carrying data. The thicker traces can tolerate more stress.
  • the traces on the flexible members can be arranged such that thicker traces are located in regions anticipated to experience high stress and thinner traces can be located in regions anticipated to experience lower stresses as a result of bending.
  • the stresses on member 124 can be higher at the edge 124b than at the center 124a under bending. If trace 120a is thicker than 120b, trace 120a can be placed closer to the edge 124b than trace 120b.
  • the shape of a flexible member can be altered if it is does not have a big enough area of low stress to accommodate all of the traces that require a low stress level. For instance, if there were too many traces to fit in a center area 124a of member 124 that will experience low stress upon bending, then width of member 124 can be widened to increase an area of low stress near the center 124a. Then, additional traces can be routed through the low stress area. As another example, the thickness of the flexible member, such as 124 or 126, can be increased to possibly increase a number of suitable layers in the low stress areas.
  • the areas of low stress can vary along a length of the member. For example, as a result of twisting at one end of member 124 the area of low stress can be closer to a particular edge or surface than at the other end.
  • the traces can be designed to follow a path of low stress along the member. Thus, traces do not necessarily have to follow a straight path parallel to the edge of the flexible member along the length of the member. For instance, the traces can follow a curved path along the length of a flexible member. In the design process, stress distributions for various deflections of a flexible member can be determined and these stress distributions can be used to develop trace paths along the flexible member.
  • the fasteners because of the stress between the fasteners on a flexible member, it may be desirable not to place any circuitry components other than the traces in between the fasteners. In other embodiments, if the stress is not too great it can be possible to place additional circuitry components in this area. To allow the fasteners to apply a force evenly across the flexible members and because the region next to the fasteners experiences high bending stresses, it may be desirable not to locate circuitry other than traces proximate to where the fasteners are secured and particularly beneath the fasteners.
  • Fig. 3 shows a top view of a multi-plane rigid circuit board 136 in accordance with the described embodiments.
  • the board 136 includes three flexible members, 138, 142 and 146. Two of the flexible members 142 and 146 extend from a body portion 137 of the board 136. A third member 138 is within the body portion 137.
  • Each flexible member, such as 138, 142 and 146 can be associated with multiple bend lines and include an end portion located near the free end of the flexible member. Bend lines 140a and 140b are depicted for member 138 and bend lines 144a and 144b are depicted for member 142.
  • the end portion 143 can include an interface that connects to power and/or data traces located on the member 138.
  • the free end of member 138 can be deflected up or down as well as twisted and secured at another location. Then, the interface on the free end can be coupled to other circuitry, such as another board, to establish power and data connections.
  • a bend line does not have to be necessary located at the intersection between the flexible member and the body portion 137.
  • the bend line can be located a distance away from the intersection.
  • bend line 144b is located on flexible member 142 above the intersection between the member 142 and the body portion 137.
  • a flexible member such as 138, 142 or 146 can be bent along only a single bend line. In other embodiments, a flexible member can be bent at more than two locations along the member. The bend lines that are generally perpendicular to an edge of the flexible member are depicted. Nevertheless, in further embodiments, one or more diagonal bend lines, such as bend line 145 can be used.
  • flexible members have been shown as rectangles of a constant width other shapes are possible in various embodiments. For instance, member 146 includes a widened end portion 148 where the width of the portion 148 is wider than the rest of the body of the member 146. In other examples, the flexible members can have curved or tapered portions (not shown).
  • Fig. 4 is a flow chart of a method 149 of manufacturing a computer device, such as portable computing device, using a multi-plane rigid circuit board.
  • the first printed circuit board can be a multi-plane rigid circuit board as previously described.
  • the first printed circuit board can be a main logic board for the portable computing device.
  • the trace locations on a flexible member of a first printed board can be determined. The trace locations can be arranged on the flexible member based upon the determined stress locations. For instance, thicker traces can be placed in high stress areas and thinner traces can be placed in low stress areas.
  • the flexible member can be resized and steps 150 and 152 can be repeated.
  • the first circuit board can be manufactured.
  • the first circuit board can include markings on the flexible member indicating proximate locations where bending is to take place on the flexible member during assembly.
  • the first printed circuit board can be secured to a support structure associated with an enclosure of the portable computing device.
  • a first stress isolator which can be a fastener, can be secured across a flexible member associated with the first printed circuit board proximate to a first bend line associated with the flexible member.
  • a free end of the flexible member can be deflected and/or twisted such that an end portion of the flexible member is aligned in a preferred orientation.
  • the preferred orientation of the flexible member can be at different level and/or in a different planar orientation than a portion of the first printed circuit board.
  • a second stress isolator which can be a fastener, can be secured across the flexible member proximate to a second bend line to fix the end of the flexible member in the preferred orientation. If necessary, additional fasteners can be used to secure the end portion in the preferred orientation.
  • a first connection interface on the end the portion of the member in the preferred orientation can be secured to a second connection interface on a second printed circuit board. Via traces on the flexible member, power and/or data can be transferred between the first circuit board and the second circuit board.
  • the first circuit board can be a main logic board and the second circuit board can be associated with one of a an external pin connector interface, a Sim Card, an antenna, a memory unit, a display, an audio device, a touch screen, a button or some other type of mechanical controller (e.g., a volume slider or volume disc).
  • connection schemes described herein allows for a first circuit board with a flexible member.
  • the flexible member can include traces for carrying power and/or data and an interface to the power and/or data traces.
  • a flexible member can be deflected and secured at a first level within the portable computing device and a remaining portion of the first circuit board can be secured at a second level. Via the interface on the flexible member, a second circuit board secured at the first level can be coupled to the first circuit board.

Claims (17)

  1. Un procédé de fabrication, comprenant :
    l'obtention d'une première carte de circuit imprimé (104) et d'un boitier (102) pour un dispositif informatique portable (100), un organe flexible (124) s'étendant à partir d'une portion de corps (137) de la première carte de circuit imprimé (104), l'organe flexible (124) comprenant une pluralité de pistes (120) et une extrémité libre de l'organe flexible (124) comprenant une première interface (128b) avec la pluralité de pistes (120) ;
    la fixation de la première carte de circuit imprimé (104) à l'intérieur d'une partie interne du boitier (102) ;
    la fixation d'une première attache (125b) en travers de l'organe flexible (124) de sorte qu'une surface de la première attache (125b) soit en contact avec un côté de l'organe flexible (124) incluant la pluralité de pistes (120) ;
    la déformation de l'extrémité libre de l'organe flexible (124) de sorte que l'organe flexible (124) soit courbé le long d'une première ligne proche de la première attache (125b) ;
    la fixation de l'extrémité libre de l'organe flexible (124) en utilisant une seconde attache (125a), l'organe flexible (124) étant courbé le long d'une seconde ligne proche de la seconde attache (125a) d'une manière telle qu'une partie d'extrémité de l'extrémité libre se situe à l'intérieur du boitier (102) à une profondeur (110) différente de celle de la partie de corps (137) de la première carte de circuit imprimé (104) ;
    la connexion d'une seconde carte de circuit imprimé (106) à la première interface (128b) afin de permettre la transmission de données et d'une alimentation entre la seconde carte de circuit (106) et la première carte de circuit (104) via la pluralité de pistes (120) sur l'organe flexible (124) ;
    caractérisé par la détermination d'un positionnement de la pluralité de pistes (120) les unes par rapport aux autres sur l'organe flexible (124), les pistes plus minces (120) et les pistes plus épaisses (120) étant routées le long de l'organe flexible (124), et les pistes plus épaisses (120) étant routées sur l'étendue de zones sur l'organe flexible (124) avec des valeurs de contrainte qui sont supérieures aux valeurs de contrainte où les pistes plus minces sont routées sur l'organe flexible (124).
  2. Le procédé de la revendication 1, comprenant en outre :
    la détermination d'une distribution de contraintes le long de l'organe flexible (124) lorsque celui-ci est en une position fléchie.
  3. Le procédé de la revendication 1 ou de la revendication 2, dans lequel la portion de corps (137) de la première carte de circuit imprimé (104) est alignée proximalement avec un premier plan et dans lequel la partie d'extrémité de l'organe flexible (124) est alignée proximalement avec un second plan et dans lequel le second plan forme un angle (132) avec le premier plan.
  4. Le procédé des revendications 1, 2 ou 3, dans lequel la première carte de circuit (104) est une carte logique principale et dans lequel la seconde carte de circuit (108) est associée à une interface à broches externe ou à une carte SIM.
  5. Un dispositif informatique portable (100), comprenant :
    un boitier (102) ;
    un afficheur couplé au boitier (102) ;
    une première carte de circuit imprimé (104) fixée à l'intérieur d'une partie interne du boitier (102), la première carte de circuit (104) comprenant un organe flexible (124) formé d'une seule pièce avec la première carte de circuit (104) et s'étendant à partir d'une partie de corps (137) de la première carte de circuit (104), ledit organe flexible (124) comprenant une pluralité de pistes (120), l'organe flexible (124) étant fixé par une première attache (125b) placée en travers de l'organe flexible (124) à proximité de l'endroit où l'organe flexible (124) s'étend à partir de la partie de corps (137) et étant fixé par une seconde attache (125a) placée en travers de l'organe flexible (124) à proximité d'une extrémité de l'organe flexible (124) de manière qu'une partie d'extrémité de l'organe flexible (124) comprenant une interface avec la pluralité de pistes (120) soit située proximalement dans un premier plan à un premier niveau de profondeur à l'intérieur du boitier (102) et que la partie de corps (137) soit située proximalement dans un second plan à un second niveau de profondeur à l'intérieur du boitier (102) ; et
    une seconde carte de circuit (106) fixée à l'intérieur du boitier (102) et couplée à l'interface sur la partie d'extrémité de l'organe flexible (124) de sorte qu'une alimentation ou des données soient communiquées entre la première carte de circuit imprimé (104) et la seconde carte logique liée à la pluralité de pistes (120) sur l'organe flexible,
    caractérisé en ce que la pluralité de pistes (120) comprend des pistes plus épaisses (120) et des pistes plus minces (120) et les pistes plus épaisses sont situées plus près d'un bord latéral de l'organe flexible (124) que les pistes plus épaisses.
  6. Le dispositif informatique portable (100) de la revendication 5, dans lequel une distance entre le premier plan et le second plan est comprise entre 1 mm et 5 mm.
  7. Le dispositif informatique portable (100) de la revendication 5 ou de la revendication 6, dans lequel la première carte de circuit (104) comprend un second organe flexible (126).
  8. Le dispositif informatique portable (100) des revendications 5, 6 ou 7, dans lequel la pluralité de pistes (120) comprend dix pistes (120) ou plus.
  9. Le dispositif informatique portable (100) de l'une des revendications 5 à 8, dans lequel des composants du dispositif (112) associés à la première carte de circuit (104) ne sont pas situés sur l'organe flexible (124).
  10. Le dispositif informatique portable (100) de l'une des revendications 5 à 9, dans lequel la première carte logique (104) est :
    une carte logique principale comprenant un processeur et une mémoire couplée à l'afficheur.
  11. Le dispositif informatique portable (100) de la revendication 9, dans lequel la seconde carte de circuit (106) est associée à l'un d'entre un connecteur externe multibroche, une carte SIM, une antenne ou l'afficheur.
  12. Le dispositif informatique portable (100) de la revendication 11, dans lequel le second plan est tourné d'un angle (132) par rapport au premier plan.
  13. Le dispositif informatique portable (100) de la revendication 10, 11 ou 12, dans lequel la première attache (125b) ou la seconde attache (125a) comprennent une surface arrondie configurée pour augmenter un rayon de courbure de l'organe flexible (124) à proximité de la première attache (125b) ou de la seconde attache (125a).
  14. Le dispositif informatique portable (100) de l'une des revendications 10 à 13, dans lequel la première attache (125b) et la seconde attache (125a) sont configurées pour concentrer les contraintes de courbure dans une zone de l'organe flexible (124) située entre les deux attaches.
  15. Le dispositif informatique portable (100) de l'une des revendications 5 à 9, dans lequel la pluralité de pistes (120) est configurée en couches au sein de l'organe flexible (124) et dans lequel les pistes plus épaisses (120) sont routées sur des zones de l'organe flexible (124) avec des valeurs de contrainte qui sont supérieures aux valeurs de contrainte là où sont routées les pistes plus minces (120) sur l'organe flexible (124).
  16. Le dispositif informatique portable (100) de la revendication 15, dans lequel une ou plusieurs pistes (120) sont placées dans une couche à proximité de l'endroit où s'équilibrent les forces de compression et les forces de traction résultant d'une courbure de l'organe flexible (124).
  17. Support non temporaire lisible par calculateur stockant un programme informatique exécutable par un processeur pour mettre en oeuvre un procédé de fabrication comprenant :
    du code informatique pour l'obtention d'une première carte de circuit imprimé (104) et d'un boitier (102) pour un dispositif informatique portable (100), ladite première carte de circuit imprimé (104) comprenant un organe flexible (124) s'étendant à partir d'une partie de corps (137) de la première carte de circuit imprimé et
    partageant un substrat commun avec la première carte de circuit imprimé (104), l'organe flexible (124) comprenant une pluralité de pistes (120) et une extrémité libre de l'organe flexible (124) comprenant une première interface (128b) avec la pluralité de pistes (120) ;
    du code informatique pour fixer la première carte de circuit imprimé (104) dans une partie interne du boitier (102) ;
    du code informatique pour fixer une première attache (125b) en travers de l'organe flexible (124) de sorte qu'une surface de la première attache (125b) soit en contact avec un côté de l'organe flexible (124) incluant la pluralité de pistes (120) ;
    pour la déformation de l'extrémité libre de l'organe flexible (124) d'une manière telle que l'organe flexible (124) soit courbé le long d'une première ligne à proximité de la première fixation (125b) ;
    du code informatique pour fixer l'extrémité libre de l'organe flexible (124) en utilisant une seconde attache (125a), l'organe flexible (124) étant courbé le long d'une seconde ligne à proximité de la seconde attache (125a) de sorte qu'une partie d'extrémité de l'extrémité libre soit située à une profondeur (110) à l'intérieur du boitier (102) qui soit différente de celle de la partie de corps (137) de la première carte de circuit imprimé (104) ;
    du code informatique pour connecter une seconde carte de circuit (106) à la première interface (128b) pour permettre la transmission de données et d'une alimentation entre la seconde carte de circuit (106) et
    la première carte de circuit (104) via la pluralité de pistes (120) sur l'organe flexible (124) ;
    caractérisé par :
    la détermination d'un positionnement de la pluralité de pistes (120) par rapport à une autre sur l'organe flexible (124), des pistes plus minces (120) et des pistes plus épaisses (120) étant routées le long de l'organe flexible (124) et les pistes plus épaisses (120) étant routées sur l'étendue de zones de l'organe flexible (124) présentant des valeurs de contrainte qui sont plus élevées que les valeurs de contrainte là où sont routées les pistes plus minces (120) sur l'organe flexible (124).
EP10749586.3A 2010-01-06 2010-08-31 Carte à circuit imprimé Active EP2522206B1 (fr)

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US12/694,166 US7995334B2 (en) 2010-01-06 2010-01-26 Printed circuit board
PCT/US2010/047272 WO2011084187A1 (fr) 2010-01-06 2010-08-31 Carte à circuit imprimé

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EP (2) EP2775375B1 (fr)
JP (2) JP5547818B2 (fr)
KR (2) KR101283066B1 (fr)
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AU (1) AU2010340306B2 (fr)
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EP2522206A1 (fr) 2012-11-14
CN102118922A (zh) 2011-07-06
GB201213882D0 (en) 2012-09-19
CN201903812U (zh) 2011-07-20
KR101449220B1 (ko) 2014-10-08
KR101283066B1 (ko) 2013-07-05
JP2014042331A (ja) 2014-03-06
US8659906B2 (en) 2014-02-25
US20110164371A1 (en) 2011-07-07
EP2775375B1 (fr) 2015-09-30
EP2775375A1 (fr) 2014-09-10
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CN102118922B (zh) 2013-09-18
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US7995334B2 (en) 2011-08-09
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AU2010340306A1 (en) 2012-08-23
WO2011084187A1 (fr) 2011-07-14
DE112010005092T5 (de) 2012-10-25
BR112012016803B1 (pt) 2020-02-04
US8171623B2 (en) 2012-05-08
JP2013516786A (ja) 2013-05-13
US20110225817A1 (en) 2011-09-22
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US20120195008A1 (en) 2012-08-02
BR112012016803A2 (pt) 2016-04-19

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